Circuit used in digitizing analog video from an image pixel array

an image pixel array and circuit technology, applied in the field of charge coupled devices, can solve the problems of inconvenient use, high frame rate and low readnoise of a variety, and the incontiguousness of image pixels, so as to reduce the likelihood of accidental damage to a ccd, improve the reliability of external synchronization and control, and improve the effect of synchronization and control

an image pixel array and circuit technology, applied in the field of charge coupled devices, can solve the problems of inconvenient use, high frame rate and low readnoise of a variety, and the incontiguousness of image pixels, so as to reduce the likelihood of accidental damage to a ccd, improve the reliability of external synchronization and control, and improve the effect of synchronization and control

US20090027556A1Inactive Publication Date: 2009-01-29SCIMEASURE ANALYTICAL SYST
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  • Circuit used in digitizing analog video from an image pixel array
  • Circuit used in digitizing analog video from an image pixel array
  • Circuit used in digitizing analog video from an image pixel array

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Embodiment Construction

[0034]The description of the various embodiments of the present invention will hereinafter refer to the drawings, in which like numerals indicate like elements throughout the several figures.

[0035]In FIG. 1, a general block diagram of a system 100 in accordance with the invention is shown. Camera System 100 comprises Camera Control Unit (CCU) 102 and at least one Camera Head 104. CCU 102 comprises Controller Bus 122, Command Module 106, one or more Clock Driver Modules 108, one or more Service Modules 110, one or more Input Modules 112, and one or more Output Modules 116. The modules can be interfaced to the Controller Bus 122 through Connectors 300. Camera Head 104 comprises Preamplifier 120 and CCD 118. Command Module 106 includes a RS-232 interface for communication with external devices as well as transistor-transistor logic (TTL) level inputs and outputs that support external hold for control of the CCU by external devices and synchronization with external devices.

[0036]Command...

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Abstract

Disclosed herein is a camera system and camera controller having a modularized design. Camera control functions within the controller are distributed among a number of modules, each module performing a component task of controlling a camera. Individual modules can perform tasks such as generating clock signals, digitizing an analog video signal, and providing multiplexed digital video output. Modules communicate with each other over a common bus sufficient to carry the signals necessary to control the camera. The system implements a RAM-based digital sequencer that provides the capability of loading bit patterns into memory and using these patterns to generate waveforms for clocking a CCD. Clock and readout sequences can be composed in a high level language, compiled and uploaded into the controller. Adjustable clamp and sample signal delays used in digitizing an analog video signal provide the capability to optimize the performance of the system in a given application.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a divisional application from U.S. application Ser. No. 10 / 457,052, filed on Jun. 6, 2003, which claims priority from Provisional Application No. 60 / 387,316, filed Jun. 7, 2002. Both of these applications are incorporated herein by reference in their entirety.FIELD OF THE INVENTION[0002]This invention relates generally to charge coupled devices (CCDs), MOS, and other pixel sensor arrays, cameras, controllers, imaging systems, and methods of controlling and operating the same. The invention is directed to a controller and camera system having a modularized architecture making it extensible to all known types of CCDs and other pixel sensor arrays. The present invention is particularly well suited for use in scientific imaging applications such as adaptive optics, wavefront sensing, interferometry, fringe tracking, and neuroscience research. The small form factor with remote head of the present invention also makes the sy...

Claims

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Application Information

Patent Timeline
29 Jan 2009
Publication
US20090027556A1
IPC
H03M1/12; H04N5/228; H04N5/232
CPC
H04N5/335; H04N5/232; H04N23/60; H04N25/00
Inventors
BLEAU, CHARLES A.; LILBURN, RAYMOND C.